Abstract: A snorkeling breathing apparatus of the present invention includes a mouthpiece; an inhalation unit configured to communicate with the mouthpiece and to open upon inhalation to guide external air to the mouthpiece and close upon exhalation; and an exhalation unit configured to communicate with the mouthpiece and to close upon inhalation and open upon exhalation to discharge the exhalation.

Abstract: A process provides an unlimited source of ethanol, for primary use as a liquid disinfectant for application directly to human hands or to hand wipes, by combining a carbon nanospike catalyst with a copper catalyst, carbon dioxide, water and water vapor, and injection of photons and electromagnetic waves, in an electrochemical process initiated by a power source. The process also provides an unlimited source for hydrogen peroxide and ammonia. Further, the application provides an improved process for making the carbon nanospike, through injection with photons and electromagnetic waves.

Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to activate the second heater in response to determining that a compound deposit is likely present.

Abstract: The invention provides a group of anti-VHH domain antibodies and use thereof. The present invention further provides use of the described antibodies in the development, screening and purification of nano-antibodies, and use of the described antibodies in the field of immunotherapy.

Abstract: Disclosed in the embodiments of the present disclosure are a video recording method and apparatus, an electronic device, and a storage medium. The method includes: upon receiving an instruction to be recorded, prompting a recording subject that is matched with said instruction, so as to inform a user of the subject information of a video to be recorded; and upon receiving a recording starting instruction, separately performing video recording on the user and a virtual teacher according to a recording order matched with the recording subject, wherein when video recording is performed on the user, response information is determined according to the voice content of the user in the video, and the voice of the virtual teacher expressing the response information is played in a video background voice mode.

Abstract: A powered device PD detection device is configured to identify a type of power sourcing equipment. The PD detection device includes a detection circuit and a processing circuit, and the detection circuit is connected to the processing circuit. The detection circuit is configured to: receive hierarchical waveform information sent by the power sourcing equipment, and generate a corresponding first-type signal or a corresponding second-type signal based on the hierarchical waveform information, and is further configured to send the first-type signal or the second-type signal to the processing circuit, where the first-type signal corresponds to first-type power sourcing equipment, and the first-type power sourcing equipment includes at least one of non-standard power sourcing equipment and a direct current adapter.

Abstract: The disclosure provides a power supply and an operation method thereof. The power supply includes a power factor correction (PFC) circuit, a resonant conversion circuit and a dead zone control circuit. The PFC circuit performs power factor correction to output a corrected voltage. The resonant conversion circuit is coupled to the PFC circuit to receive the corrected voltage. The resonant conversion circuit converts the corrected voltage into a converted voltage. The dead zone control circuit is coupled to the resonant conversion circuit to receive the switch voltage. The dead zone control circuit controls the PFC circuit to adjust the corrected voltage. The dead zone control circuit observes the change trend of the falling time of the switch voltage in the deadtime by adjusting the corrected voltage. The dead zone control circuit determines the corrected voltage according to the change trend of the switch voltage.

Abstract: Provided are a memory device and a method of forming the same. The memory device includes: a selector; a magnetic tunnel junction (MTJ) structure, disposed on the selector; a spin orbit torque (SOT) layer, disposed between the selector and the MTJ structure, wherein the SOT layer has a sidewall aligned with a sidewall of the selector; a transistor, wherein the transistor has a drain electrically coupled to the MTJ structure; a word line, electrically coupled to a gate of the transistor; a bit line, electrically coupled to the SOT layer; a first source line, electrically coupled to a source of the transistor; and a second source line, electrically coupled to the selector, wherein the transistor is configured to control a write signal flowing between the bit line and the second source line, and control a read signal flowing between the bit line and the first source line.

Abstract: The present invention relates to a glass ceramic composition comprising SiO2, Ca(OH)2, CaF2, B2O3, MgO, and hydroxyapatite; a bioactive crystallized glass ceramic comprising each of CaSiO3, Ca10(PO4)6(OH)2, and CaMgSi2O6 in an amount of 20% to 60% by weight; an implant for early osseointegration comprising the glass ceramic; and a method for manufacturing the implant.

Abstract: Disclosed herein is a virtual pedestrian traffic light (VPTL) system and method that provides an infrastructure-free way to provide the right-of-way to pedestrians at intersections. The invention is most effective when integrated with existing virtual traffic light (VTL) systems to provide complete infrastructure-free control of traffic at intersections.

Abstract: A multi-parallel carbon dioxide heat pump control method based on target load control, wherein the multi-parallel carbon dioxide heat pump comprises a carbon dioxide circulation loop, a heat source pipeline and a hot water pipeline, and the control method comprises: adjusting the opening degree of an electronic expansion valve (3) according to the temperature of an inlet of the hot water pipeline, the temperature of an outlet of the hot water pipeline, the flow in the hot water pipeline and a target outlet temperature set by a user, such that the steady-state change of system pressure can be realized by adjusting the electronic expansion valve (3) on the basis of the fluctuation of parameters such as user side temperature and flow, thus a target outlet temperature change curve is rapidly and stably converged to a target value, and the outlet temperature can be rapidly stabilized.

Abstract: An SSVEP-based attention evaluation method, a training method, and a brain-computer interface are provided. The vision of a subject (3) is stimulated by means of displaying test image(s) (2), the brain waves of the subject (3) are collected, the SSVEP in the brain waves is extracted, and the amplitude features of the SSVEP are used to represent the degree of attention of the subject (3). The present method achieves quantification of the degree of attention and increases the accuracy and usability of attention evaluation, increases the dimension of information that EEG signals can reflect, increases the usability of the brain-computer interface, and widens the motion control function of the brain-computer interface.

Abstract: A monitoring device for monitoring a fabrication process in a fabrication system. The monitored fabrication system includes a process chamber and a plurality of flow components. A quartz crystal microbalance (QCM) sensor monitors one flow component of the plurality of flow components of the fabrication system and is configured for exposure to a process chemistry in the one flow component during the fabrication process. A controller measures resonance frequency shifts of the QCM sensor due to interactions between the QCM sensor and the process chemistry in the one flow component during the fabrication process. The controller determines a parameter of the fabrication process in the process chamber as a function of the measured resonance frequency shifts of the QCM sensor within the one flow component.

Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.

Abstract: The present disclosure provides a method for predicting co-channel interference (CCI) of a satellite-to-ground downlink under a low-orbit satellite constellation. The method includes: obtaining CCI values in a first time period and CCI values in a second time period; constructing a CCI model based on the CCI values in the first time period and a dropout wavelet neural network (WNN); updating parameters of the CCI model; inputting the CCI values in the second time period into an updated CCI model to obtain accuracy; determining whether the accuracy is greater than an accuracy threshold; and if the accuracy is greater than the accuracy threshold, reconstructing the CCI model; or if the accuracy is less than or equal to the accuracy threshold, outputting the updated CCI model; and predicting CCI values of each link at a next moment based on the updated CCI model.

Abstract: A power control of a wireless charging inverter is provided. Communication is performed between a driving vehicle and an inverter used for wireless charging of a vehicle. Using the location information of the driving vehicle, the time for the driving vehicle to enter the power supply line and the expected time to leave the power supply line are predicted. The power of the inverter is controlled by using the predicted enter and exit time information of the driving vehicle.

Abstract: The present application provides a light-emitting device. The light-emitting device includes: a first electrode; a second electrode; and an interlayer located between the first electrode and the second electrode, the interlayer including an emission layer, wherein the emission layer includes a first compound represented by Formula 1 and a second compound including at least one of an electron withdrawing group and a ? electron-deficient nitrogen-containing C1-C60 cyclic group.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan properties can be provided by including the organic electroluminescent compound according to the present disclosure as a single host material or by including a specific combination of compounds according to the present disclosure as a plurality of host materials.

Abstract: Systems and methods for generating user interface elements associated with a guided workout are disclosed herein. For example, by analyzing location data associated with a user device, along with digital content corresponding to the guided workout, the system may generate user interface elements including graphical representations, segmented timelines, and performance metrics associated with a user's progress and performance while consuming the guided workout content. These interface elements may be displayed to the user during and/or after the workout and may allow for user interaction to view varying levels of detail associated with the interface elements.

Abstract: The present invention relates to a flexible display device, comprising: a first body; a second body configured to be movable relative to the first body; a support plate installed on the rear surface of the second body and configured to be movable relative to the second body; a flexible display unit configured such that areas exposed to the outside are changed while the first body and the second body move relative to each other; and a driving unit generating a driving force such that the second body slides with respect to the first body, wherein as the driving unit causes a movement of the second body through a rotational force by means of a motor, the areas exposed to the outside of the front part and the rear part of the flexible display unit can be changed respectively.